You might be a bit more surprised to find that the biggest gap of all exists over GMO safety — I was, it’s stunningly big. But in general, we know this stuff already. We know that people deny a lot of science when they really shouldn’t.Evolution. Basically, a lot of people are afraid that if they accept the science of evolution, life becomes meaningless, morality collapses, and death becomes just the end. (Yeah, it’s really that big of a deal for them.) To address this fear, scientists need to show how religious believers (like Pope Francis) actually have no problem with the theory of evolution. Some have adopted this wise strategy, but many have instead opted to slam religion, which, obviously, is likely to backfire.Climate Change. Here, resistance to the science is driven by an ideology and an identity called individualism, which centers on the belief that a fair society is one in which a person succeeds on his or her own merits. What does that have to do with the climate, you ask? Well, nothing obvious — except that libertarian individualists think that the climate issue is a way of clamping down on something they hold in very high regard indeed: the free market. Scientists can try to explain the facts here till they’re blue in the face, but if they don’t disarm the concerns rooted in ideology, they’ll never disarm the resistance.